Have access to (potentially expensive) desktop software. Sure, mobile editing apps exist, but they’re not really suitable for much outside of small tweaks like skin smoothing and color adjustment. So, for this job, you’ll need a computer — a costly investment for internet fuckery. And while some desktop editing apps are free (Gimp, Photopea, etc.), most professional-level tools are not. Adobe’s Creative Cloud apps are among the most popular, and the recurring subscriptions ($263.88 per year for Photoshop alone) are notoriously hard to cancel.